Now showing items 1-11 of 11

    • The Afterglow and Environment of the Short Grb 111117a 

      Margutti, R; Berger, Edo; Fong, W; Zauderer, B; Cenko, S. B.; Greiner, J.; Soderberg, Alicia M.; Cucchiara, A.; Rossi, A.; Klose, S.; Schmidl, S.; Milisavljevic, Danny; Sanders, Nathan Edward (IOP Publishing, 2012)
      We present multi-wavelength observations of the afterglow of the short GRB 111117A, and follow-up observations of its host galaxy. From rapid optical and radio observations we place limits of r & 25.5 mag at δt ≈ 0.55 d ...
    • The Afterglow and Ulirg Host Galaxy of the Dark Short Grb 120804a 

      Berger, Edo; Zauderer, B; Levan, A.; Margutti, R.; Laskar, T.; Fong, W.; Mangano, V.; Fox, D. B.; Tunnicliffe, R. L.; Chornock, R.; Tanvir, N. R.; Menten, K. M.; Hjorth, J.; Roth, K.; Dupuy, T. J. (IOP Publishing, 2013)
      We present the optical discovery and sub-arcsecond optical and X-ray localization of the afterglow of the short GRB 120804A, as well as optical, near-IR, and radio detections of its host galaxy. X-ray observations with ...
    • Birth of a relativistic outflow in the unusual γ-ray transient Swift J164449.3+573451 

      Zauderer, Bevin Ashley; Berger, Edo; Soderberg, Alicia M.; Loeb, Abraham; Narayan, Ramesh; Frail, D. A.; Petitpas, Glen Raymond; Brunthaler, A.; Chornock, Ryan T.; Carpenter, J. M.; Pooley, G. G.; Mooley, K.; Kulkarni, S. R.; Margutti, Raffaella; Fox, D. B.; Nakar, E.; Patel, Nimesh A.; Volgenau, N. H.; Culverhouse, T. L.; Bietenholz, M. F.; Rupen, M. P.; Max-Moerbeck, W.; Readhead, A. C. S.; Richards, J.; Shepherd, M.; Storm, S.; Hull, Charles L. H. (Springer Nature, 2011)
      Active galactic nuclei, which are powered by long-term accretion onto central supermassive black holes, produce1 relativistic jets with lifetimes of at least one million years, and the observation of the birth of such a ...
    • A Decade of Short-Duration Gamma-Ray Burst Broad-Band Afterglows: Energetics, Circumburst Densities, and Jet Opening Angles 

      Fong, W.; Berger, Edo; Margutti, R; Zauderer, B (IOP Publishing, 2015)
      We present a comprehensive catalog and analysis of broad-band afterglow observations for 103 short duration gamma-ray bursts (GRBs), comprised of all short GRBs from November 2004 to March 2015 with prompt follow-up ...
    • Detection of Radio Emission From the Hyperactive L Dwarf 2mass J13153094−2649513ab 

      Burgasser, Adam J.; Melis, Carl; Zauderer, B; Berger, Edo (IOP Publishing, 2012)
      We report the detection of radio emission from the unusually active L5e + T7 binary 2MASS J13153094−2649513AB made with the Australian Telescope Compact Array. Observations at 5.5 GHz reveal an unresolved source with a ...
    • A Jet Break in the X-Ray Light Curve of Short Grb 111020a: Implications for Energetics and Rates 

      Fong, W; Berger, Edo; Margutti, R; Zauderer, B; Troja, E.; Czekala, Ian Philip; Chornock, R; Gehrels, N.; Sakamoto, T.; Fox, D. B.; Podsiadlowski, P. (IOP Publishing, 2012)
      We present broad-band observations of the afterglow and environment of the short GRB 111020A. An extensive X-ray light curve from Swift/XRT, XMM-Newton and Chandra, spanning ∼ 100 seconds to 10 days after the burst, reveals ...
    • Metamorphosis of Sn 2014c: Delayed Interaction Between a Hydrogen Poor Core-Collapse Supernova and a Nearby Circumstellar Shell 

      Milisavljevic, Danny; Margutti, R; Kamble, Atish; Patnaude, Daniel James; Raymond, John Charles; Eldridge, J. J.; Fong, W.; Bietenholz, M.; Challis, Peter M.; Chornock, R; Drout, Maria Rebecca; Fransson, C.; Fesen, R. A.; Grindlay, Jonathan E.; Kirshner, Robert P.; Lunnan, R; Mackey, J.; Miller, George Franklin; Parrent, Jerod T.; Sanders, Nathan Edward; Soderberg, Alicia M.; Zauderer, B (IOP Publishing, 2015)
      We present optical observations of supernova SN 2014C, which underwent an unprecedented slow metamorphosis from H-poor type Ib to H-rich type IIn over the course of one year. The observed spectroscopic evolution is consistent ...
    • A Panchromatic View of the Restless Sn 2009ip Reveals the Explosive Ejection of a Massive Star Envelope 

      Margutti, R.; Milisavljevic, Danny; Soderberg, Alicia M.; Chornock, R; Zauderer, B; Murase, K.; Guidorzi, C.; Sanders, Nathan Edward; Kuin, P.; Fransson, C.; Levesque, E. M.; Chandra, P.; Berger, Edo; Bianco, F. B.; Brown, P. J.; Challis, P.; Chatzopoulos, E.; Cheung, C. C.; Choi, C.; Chomiuk, L.; Chugai, N.; Contreras, C.; Drout, M. R.; Fesen, R.; Foley, R. J.; Fong, W.; Friedman, A. S.; Gall, C.; Gehrels, N.; Hjorth, J.; Hsiao, E.; Kirshner, R.; Im, M.; Leloudas, G.; Lunnan, R.; Marion, G. H.; Martin, J.; Morrell, N.; Neugent, K. F.; Omodei, N.; Phillips, M. M.; Rest, A.; Silverman, J. M.; Strader, J.; Stritzinger, M. D.; Szalai, T.; Utterback, N. B.; Vinko, J.; Wheeler, J. C.; Arnett, D.; Campana, S.; Chevalier, R.; Ginsburg, A.; Kamble, A.; Roming, P. W. A.; Pritchard, T.; Stringfellow, G. (IOP Publishing, 2013)
      The double explosion of SN 2009ip in 2012 raises questions about our understanding of the late stages of massive star evolution. Here we present a comprehensive study of SN 2009ip during its remarkable rebrightenings. ...
    • Quasi-Quiescent Radio Emission From the First Radio-Emitting T Dwarf 

      Williams, Peter K. G.; Berger, Edo; Zauderer, B (IOP Publishing, 2013)
      Radio detections of ultracool dwarfs provide insight into their magnetic fields and the dynamos that maintain them, especially at the very bottom of the main sequence, where other activity indicators dramatically weaken. ...
    • Radio Monitoring of the Tidal Disruption Event Swift j164449.3+573451. Ii. the Relativistic Jet Shuts Off and a Transition to Forward Shock X-Ray/radio Emission 

      Zauderer, B; Berger, Edo; Margutti, R; Pooley, G. G.; Sari, R.; Soderberg, Alicia M.; Brunthaler, A.; Bietenholz, M. F. (IOP Publishing, 2013)
      We present continued multi-frequency radio observations of the relativistic tidal disruption event Swift J164449.3+573451 (Sw 1644+57) extending to δt ≈ 600 d. The data were obtained with the JVLA and AMI Large Array as ...
    • The Ultraviolet-Bright, Slowly Declining Transient PS1-11af as a Partial Tidal Disruption Event. 

      Chornock, R.; Berger, Edo; Gezari, S.; Zauderer, Bevin Ashley; Rest, A.; Chomiuk, L.; Kamble, Atish; Soderberg, Alicia M.; Czekala, Ian Philip; Dittmann, Jason Adam; Drout, Maria Rebecca; Foley, R. J.; Fong, W; Huber, M. E.; Kirshner, Robert P.; Lawrence, A.; Lunnan, Ragnhild; Marion, G. H.; Narayan, Gautham Siddharth; Riess, A. G.; Roth, K. C.; Sanders, Nathan Edward; Scolnic, D.; Smartt, S. J.; Smith, K.; Stubbs, Christopher William; Tonry, J. L.; Burgett, W. S.; Chambers, K. C.; Flewelling, H.; Hodapp, K. W.; Kaiser, N.; Magnier, E. A.; Martin, D. C.; Neill, J. D.; Price, P. A.; Wainscoat, R. (IOP Publishing, 2013)
      We present the Pan-STARRS1 discovery of the long-lived and blue transient PS1-11af, which was also detected by Galaxy Evolution Explorer with coordinated observations in the near-ultraviolet (NUV) band. PS1-11af is associated ...